@Stefan, please startup the crash reporter tool using this command:
sudo force_start=1 /etc/init.d/apport start
...and after that reproduce your issue and let it file a new bug. Once we have seen a full backtrace we can determine whether your issue is related to this bug or not. If the crash reporter doesn't work for some reason, open a new bug manually and link to your comment here and we can take it from there.
@Stefan, please startup the crash reporter tool using this command:
sudo force_start=1 /etc/init.d/apport start
...and after that reproduce your issue and let it file a new bug. Once we have seen a full backtrace we can determine whether your issue is related to this bug or not. If the crash reporter doesn't work for some reason, open a new bug manually and link to your comment here and we can take it from there.